Often referred to as leg braces, corner braces are U-shape steel channels attached to the legs that are used to help reinforce the structure of the building. On all buildings, depending on the size, either four 2 feet or four 4 feet long corner braces come standard and they are installed on each corner of the building. Additional corner braces are available at an additional cost. We recommend the use of 2 feet long corner braces on each building leg (2 per bow). For buildings with legs that are taller than 8 feet, we recommend that customers upgrade to 4 feet long corner braces we also recommend that they be installed on each leg of the building (2 per bow).